<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!--区域-->
    <div id="app"> 
        <input type="text" v-bind:placeholder="tips">
        <hr>
        <img v-bind:src="photo" alt="" srcset="" style='width: 150px'>

        <div>1+2的结果是: {{ 1 + 2 }} </div>
        <div>{{ tips }} 反转的结果是: {{ tips.split('').reverse().join('')}} </div>
        <div :title="'box' + index">这是一个div</div>
    </div>

    <!--引入-->
    <script src="./lib/vue-2.6.12.js"></script>

    <!--创建实例对象-->
    <script>
        const vm = new Vue({
            el: '#app',
            data: {
                tips: '请输入用户名',
                photo: 'https://cn.vuejs.org/images/logo.svg',
                index: 3,
            }
        })
    </script>
</body>
</html>